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Subtract 2/30 from 42/20

1st number: 2 2/20, 2nd number: 2/30

42/20 - 2/30 is 61/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    42/20 = 42 × 3/20 × 3 = 126/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    2/30 = 2 × 2/30 × 2 = 4/60
  4. Subtract the two like fractions:
    126/60 - 4/60 = 126 - 4/60 = 122/60
  5. After reducing the fraction, the answer is 61/30
  6. In mixed form: 21/30

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